3I/ATLAS – New images reveal a sunward jet feature and multi-tail structure.

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3I/ATLAS – New images reveal a sunward jet feature and multi-tail structure.,
3I/ATLAS – New images reveal a sunward jet feature and multi-tail structure.,

Astonishing new images reveal a sunward jet feature and multi-tail structure.
I’ll discuss these and quickly recap our latest alien visitors journey after perihelion. Also a quick guide to finding it yourself over the next few weeks.

Chapters
00:00 3I/ATLAS after perihelion
00:22 Quick recap of comet 3I/ATLAS
02:27 3I/ATLAS closest approach to Mars
02:59 Closest to Sun and what happened after
05:21 3I/ATLAS closest approach to Earth and after
06:09 How and where to see 3I/ATLAS
07:00 Imaging and observing 3I/ATLAS

Image credits
• Alberto Quijano Vodniza / University of Nariño Observatory, Colombia — 3I/ATLAS, 2025-11-08 UT. CGE Pro 1400 Celestron + SBIG STL-1001E.
• Michael Jaeger, Gerald Rhemann, Ernesto Prosperi — 3I/ATLAS, 2025-11-04 UT. 0.28-m f/2.2 reflector, 10×20 s (G), site code G00.
• Michael Buchecker, Frank Niebling — 3I/ATLAS reappearance in predawn sky, complex tail.

Research and reference links
• NASA Science — 3I/ATLAS overview: https://science.nasa.gov/solar-system/comets/3i-atlas/

• Hubble release — size estimate and image: https://science.nasa.gov/missions/hubble/as-nasa-missions-study-interstellar-comet-hubble-makes-size-estimate/

• ESA — 3I/ATLAS path refined using Mars orbiter data: https://www.esa.int/Space_Safety/Planetary_Defence/ESA_pinpoints_3I_ATLAS_s_path_with_data_from_Mars

• MPC MPEC — official designation 3I/ATLAS = C/2025 N1 (ATLAS): https://minorplanetcenter.net/mpec/K25/K25N12.html

• Gemini/NOIRLab image page: https://noirlab.edu/public/images/noirlab2522c/

• TheSkyLive — 3I/ATLAS live data and charts (planetarium/ephemerides via JPL Horizons): https://theskylive.com/planetarium?obj=3i-atlas

• TheSkyLive — C/2025 A6 (Lemmon): https://theskylive.com/c2025a6-info

• TheSkyLive — C/2025 R2 (SWAN): https://theskylive.com/c2025r2-info

• TheSkyLive — C/2025 V1 (Borisov): https://theskylive.com/c2025v1-info

Notes for observers
Not a naked-eye object. Try binoculars only under dark skies. Small or medium scopes and smart scopes are best. Use current ephemerides from JPL Horizons (via TheSkyLive) for nightly positions.,
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